After executing this with "> cql ManyChecks.cql" there are 61 studies found in the Harold van der Heijden Database 2015.NB. When you see {MATCH} in the text, it means that cql has found the position asked for.

Below only 5 studies are presented:

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your web browser and/or your host do not support iframes as required to display the chessboard

your web browser and/or your host do not support iframes as required to display the chessboard

"I just do art because I am ugly and there is nothing else for me to do - Andy Warhol."